Contents
2019
Volume: 39 Issue 8
56 Article(s)

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Retrieving Tropospheric Vertical Distribution in HCHO by Multi-Axis Differential Optical Absorption Spectroscopy
Xin TIAN, Jin XU, Pin-hua XIE, Ang LI, Zhao-kun HU, Xiao-mei LI, Bo REN, and Zi-yang WU
Formaldehyde (HCHO) plays an important role in atmospheric photochemical reactions. Besides, it’s an important aerosol precursor and photochemical oxidation indicator. The sources of HCHO in the atmosphere are mainly from primary direct emissions and photochemical reactions. Atmospheric photochemical reaction is closel
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2325 (2019)
Measurement of Tropospheric HCHO by MAX-DOAS Based on QDOAS
Min-hong WEI, Cheng LIU, Su-wen LI, Zheng-hui CHEN, and Fu-sheng MOU
Because of the importance of formaldehyde in atmospheric photochemical reaction and its harm to environment, climate and human health, it is urgent to control and monitor the concentration of formaldehyde. At present, traditional monitoring is mostly limited to indoor monitoring based on chemical methods and chromatogr
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2332 (2019)
Investigation of External Electric Field Effect on Ultraviolet-Visible Spectra of Para-Xylene Molecule by Density Functional Theory
Qian ZHANG, Jian-bin DU, Zhi-fang FENG, Ya-ru ZHANG, and Yan-lin TANG
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2337 (2019)
Emission Spectroscopy Diagnosis and Simulation Study of Argon Pressure Effect on Helicon Wave Discharge
Peng-zhen DUAN, Yi-wen LI, Bai-ling ZHANG, Xiao-long WEI, Lei CHANG, and Wei-zhuo ZHAO
Helicon plasma sources have gradually been widely adopted in various research fields due to their high ionization efficiency and high density. Lacking in understanding of the mechanism for the high ionization efficiency and the power coupling mode of helicon discharge has been a great challenge for scholars to deal wit
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2341 (2019)
Terahertz Absorption Properties of Electrolyte Solutions Based on Microfluidic Chip
Ya-xiong WU, Bo SU, Jing-suo HE, and Cun-lin ZHANG
As the vibration and rotational energy levels of many biological molecules fall in the terahertz band, which has the characteristics of low electron energy (about 4meV) and not destroying the samples, terahertz wave can be used to detect biological samples. Many biological molecules need to keep their bioactivity in th
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2348 (2019)
Complete Frequency Domain Analysis for Linewidth of Narrow Linewidth Lasers
Xiang-yu QI, Chao CHEN, Yi QU, Xing ZHANG, Yong-yi CHEN, Biao WANG, Lei LIANG, Peng JIA, Li QIN, Yong-qiang NING, and Li-jun WANG
Traditional laser linewidth characterization is usually done by introducing a self-heterodyne technique. This technique is an optical fiber delay based on laser beat note, which generates a Lorentzian spectrum related to the linewidth of a laser. In order to obtain the complete characteristics of a laser linewidth and
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2354 (2019)
Study on Preparation Mechanism of Ce-Cu/TiO2 Hollow Microspheres with Uniform Particle Size Distribution Based on Fourier Transform Infrared Spectrum and X-Ray Diffraction
Hao ZHANG, Yuan-di XU, and Xiu-yu LIU
With the development of social economy, environmental air quality has become a hot issue in the research field of indoor environmental comfort. TiO2 was an n-type semiconductor material with high chemical stability, strong corrosion resistance and non-toxic to human body. Using TiO2 photocatalysis performance to improv
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2360 (2019)
Analysis of Nonlinear Variation of Chlorophyll Fluorescence with Saturated Excitation and Its Influence on Chlorophyll Concentration Chlorophyll Concentration Measurement by LIF
Xiao-long LI, Yan HE, Wei-biao CHEN, Jing-bo JIANG, Qing-kui LIU, and Yong-hua CHEN
As one of the most important indicators for studying marine primary productivity, chlorophyll concentration in seawater can be quickly measured by laser-induced fluorescence (LIF) technology. In the traditional theory for obtaining chlorophyll concentration by LIF, the chlorophyll concentration nchl=CIF/R, where IF and
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2366 (2019)
Study on Raman Spectra and Fluorescence Spectra of Tb-Doped Aluminosilicates
Bao-feng ZHENG, Xiao-yun YANG, Chun-gang MIN, Xiao-ying CUI, and Kun DONG
CaAl2Si2O8∶xTb was prepared by the high temperature solid state reaction method. The fluorescence intensity is the strongest when the sintering temperature is 1 350 ℃. The X-ray diffraction patterns show that the base material in the system is CaAl2Si2O8, and the Tb element exists in Ca2Tb8(SiO4)6O2 phase. Raman spectr
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2371 (2019)
Research on UV Reflective Spectrum of Floating Transparent Oil
Hui HUANG, De-jun ZHANG, Chao WANG, Shu-yue ZHAN, Hong SONG, Hang-zhou WANG, Wei-ning ZHU, Jiang CHEN, Cai-cai LIU, Ren XU, and Xiao-shan JIANG
The increasing amount of petroleum products has increased the risk of the pollution accidents, which could pose an acute threat to ecological safety. The leakage accidents often have the characteristics of suddenness, contingency and large pollution. The traditional chemical sampling detection method is not suitable fo
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2377 (2019)
Design and Implementation of National Standard Grade Ⅰ Water Purification System Based on UV-Vis
Heng-zhi ZHANG, Jie MA, Wen-shen JIA, and Ji-hua WANG
The Grade Ⅰ water specified in national standards is the water commonly used in analytical laboratory. In order to analyze the quality of pure water quickly and accurately to provide scientific basis for the automation and intelligence of the equipment in analytical laboratory, this paper designed a national standard G
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2382 (2019)
Research on On-line Detection of Plasma Spectroscopy in Laser Cleaning of the Carbon Fiber Reinforced Polymer
Yan-qun TONG, Ang ZHANG, Yong-hong FU, Hong-bing YAO, Jian-zhong ZHOU, Xiao-ming CHEN, and Xu-dong REN
In recent years, carbon fiber reinforced polymer (CFRP) has received extensive attention in the industrial field, due to its excellent performance. Laser cleaning technology for pretreatment of carbon fiber reinforced polymer is beneficial to the improvement of the surface properties and the bonding strength of the int
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2388 (2019)
Theoretical Study on the Molecular Structure and Infrared Spectroscopy of Hesperidin in External Electric Field
Xin-qiang WANG, Hao-ran GE, Gui-qin LI, Song YE, Jie-jun WANG, Yong-ying GAN, and Fang-yuan WANG
In order to investigate the molecular structure and spectrum of Hesperetin (HES), a kind of dihydroflavone drug. Density Functional theory (DFT) and basis set 6-311G(d,p) are combined to optimize the ground state’s geometry of HES molecules under an external electric field (EEF) ranging from -0.005 to 0.010 a. u. in C2
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2395 (2019)
Quantitative Measurement of Artemisinin Content in Chinese Traditional Compound Medicine by Raman Spectroscopy
Jia-jia LI, Jing-li LIU, Ru-yi JIN, Yu-ping TANG, Shi-jun YUE, Li-wen WANG, Xu LONG, Guang-hui ZHANG, Qing-hua MENG, and Rong-xi LI
Artemisinin is a kind of sesquiterpene lactone drug containing peroxide groups, which is extracted from Artemisia annua L. Now it has become an antimalaria drug recommended by the world health organization. The compound preparation of Chinese material medica containing artemisinin has strong anti-malarial, antibacteria
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2403 (2019)
Terahertz Spectroscopic Study for Expired Drugs
Wei XIE, Li-ping SHANG, Hu DENG, and Quan-cheng LIU
In response to the recent negative news of several expired drugs, in order to further improve the speed of drug testing, this paper proposes a new method for nondestructive testing of drug quality using terahertz time-domain spectroscopy (THz-TDS). Firstly, the terahertz time-domain spectra of expired amoxicillin capsu
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2409 (2019)
Retrieval of Hydrothermal CH4 Based on Interference Spectroscopy and PLS Methods
Qing-song LIU, Bing-liang HU, Yuan-he TANG, Tao YU, Xue-ji WANG, Yong-zheng LIU, Peng YANG, and Hao-xuan WANG
The methane (CH4) gas released by hydrothermal enters into the ocean and atmosphere successively by diffusing and causes inestimable effect on earth in physics, chemistry and biology. The principle and environment effect of abyssal hydrothermal still require further study because limited information is available about
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2415 (2019)
Study on Fluorescence Quenching and Absorption Spectra of Olive Oil
Hong-peng WANG, and Xiong WAN
The olive oil, known as “liquid gold”, has become a synonym for healthy edible oil. It not only has a steep increase in its price, but also has become a best-selling oil in the non producing market. Spectral method has many advantages compared with other technologies, such as fast, nondestructive and non sample process
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2421 (2019)
Online Discrimination Model for Mine Water Inrush Source Based CNN and Fluorescence Spectrum
Yong YANG, Jian-hua YUE, Jing LI, and He-rui ZHANG
As deep mining goes, the water inrush threat is from the roof goaf water and the bottom pressure karst water. Coal mines water inrush water types on-line discrimination, serving as an effective monitoring method to predict mine water hazards, is an important step in Mine water disaster prevention and control work to en
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2425 (2019)
Research on Wireless Ultraviolet Scattering Characteristics of Rainfall Particles
Tai-fei ZHAO, Si-ting ZHAO, Yu-zhen DUAN, and Ying ZHANG
As ultraviolet light will be scattered by rainfall particles, the changes of scattered light characteristics can reflect the physical properties (such as particle size parameters, density and shape ) of rainfall particles. Therefore, it is of great significance to study the influence of the physical parameters of the p
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2431 (2019)
Application of Unsupervised Learning AE and MVO-DBSCAN Combined with LIF in Mine Water Inrush Recognition
Wen-hao LAI, Meng-ran ZHOU, Da-tong LI, Ya WANG, Feng HU, Shun ZHAO, and Yu-lin GU
Quick and accurate identification of water inrush types and sources of water inrush is of great significance for safe mining of coal mines. Laser-induced fluorescence (LIF) technology is rapid and sensitive in detection, which applies LIF to the detection of water inrush in coal mines and uses pattern recognition algor
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2437 (2019)
Preparation, Characterization and Properties of BiOCl1-xIx and BiOBr1-xIx Solid Solution
Ping YE, Miao-miao WU, Ming WEI, Zhen YANG, and Qiao-feng HAN
The usage of semiconductor photocatalysts for removal of contaminants is one of the greenest and most effective methods under sunlight, whose core is obtaining high-efficient photocatalysts. The most widely studied photocatalysts are TiO2, ZnO, etc., but they cannot fully utilize sunlight due to their large band gapene
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2443 (2019)
Study of the Fabrication and Spectral Analysis of Silicon-Based Nanocolumn GaN-LED
Yu-xi ZHANG, Zhi-cheng LU, Wei ZHANG, Jun-hong GUO, Xue-hua ZHANG, and Fang-ren HU
Ⅲ-Ⅴ nitride GaN light emitting diodes (LEDs) have been widely studied and applied due to their long lifetime, small size, high efficiency and energy saving. With the further development in the fields of optical communication and interconnection, it is necessary to develop high quality micro-nano photonic sources and wa
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2450 (2019)
The Spectral Pseudoisochromatic Images for Testing Retinal Cone Spectral Responses of Observers with Normal Color Vision
Rui-li HE, Min HUANG, Chun-li GUO, and Yong-hui XI
In order to test the variability in color discrimination among observers with normal color vision and study the spectral responses of cone cells in R, G, B three channels, the spectral pseudoisochromatic images consisting of background layer, lightness layer and number layer, which have different spectral reflectance w
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2454 (2019)
The Analysis of Spectral Separability of Different Coral Reef Benthos and the Influence of Pigments on Coral Spectra Based on in Situ Data
Jing-ping XU, Fang LI, Qing-hui MENG, and Fei WANG
One task of coral reef remote sensing is to obtain the composition and distributionof benthic categories. However, there is still a great deal of uncertainty anddifficulty to discriminate reef benthos by means of remote sensing owing to thespatial heterogeneity and complicated spectrum of coral reef. Spectral character
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2462 (2019)
The Study on UV-Vis Spectrum of a Special Color-Changed Sapphire
Chao-yang CHEN, Wei-zhi HUANG, Tian SHAO, Che SHEN, Zhi-bin LI, and Shen Andy Hsitien
Many colorful corundum crystals were found in Umba, Tanzania. The sample of this study is a sapphire with special color-changed effect from Umba. It shows slight yellow under D65 light source (colour temperature is 6 500 K) and slight purplish red under A light source (colour temperature is 2 856 K). In order to study
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2470 (2019)
Effect of Continuous Red/Blue LED Light and Its Light Intensity on Growth and Mineral Elements Absorption of Lettuce
Ling-yan ZHA, Yu-bin ZHANG, Zong-geng LI, and Wen-ke LIU
Red light and blue light are the main spectra of photosynthesis and photomorphogenesis in plants, and also is a developing tendency of light source in plant factory. Therefore, to realize the application of continuous light in plant factory, the response characteristics and mechanism of plants to continuous light in re
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2474 (2019)
Soil Classification Model Based on the Characteristics of Soil Reflectance Spectrum
Huan-jun LIU, Xiang-tian MENG, Xiang WANG, Yi-lin BAO, Zi-yang YU, and Xin-le ZHANG
The soil reflectance spectrum curve reflects the physical and chemical properties and internal structure of the soil. Hyperspectral remote sensing technology has been used to classify soil based on the soil reflectance spectrum characteristics. The first order differential principal component of soil reflectance spectr
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2481 (2019)
Estimation of Heavy Metal Contents in Soil Around Open Pit Coal Mine Area Based on Optimized Spectral Index
Kahaer Yasenjiang, Sawut Rukeya, Kasim Nijat, Tashpolat Nigara, Fei ZHANG, Abliz Abdugheni, and Qing-dong SHI
Spectroscopy is regarded as a quick and nondestructive method to classify and analyze quantitatively many of elements of the soil. Visible and near-infrared re?ectance spectroscopy offers a conductive tool for investigating soil heavymetal pollution. In this work, 51 soil samples with depths of 0~10 cm were collected,
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2486 (2019)
Mechanism Improvement for Pretreatment Accuracy of Field Spectra of Saline Soil Using Fractional Differential Algorithm
An-hong TIAN, Hei-gang XIONG, Jun-san ZHAO, and Cheng-biao FU
Currently the application of fractional differential (FD) algorithm for field spectra and the optimal band mechanism of spectra inversion salt in saline soil has not been seen. In view of the problem that traditional integer-order differential algorithm causes fractional-order spectral information lose and model accura
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2495 (2019)
Estimating Above Ground Biomass of Winter Wheat at Early Growth Stages Based on Visual Spectral
Ling-xian ZHANG, Yun-qiang CHEN, Yun-xia LI, Jun-cheng MA, Ke-ming DU, Fei-xiang ZHENG, and Zhong-fu SUN
Above ground biomass (AGB) is one of the most commonly used traits indicating the growth of winter wheat at early growth stages. It is of great practical significance to monitor the growth and to estimate the yield. The conventional methods involving destructive sampling and manual calculating of the dry weight to meas
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2501 (2019)
Effects of Carrageenan Oligosaccharides on the Protein Structure of Litopenaeus Vannamei by Fourier Transform Infrared and Micro-Raman Spectroscopy
Wei-qing LAN, Xiao-yu HU, Dong-na RUAN, Shu-cheng LIU, and Jing XIE
In order to study the influencing mechanism of carrageenan oligosaccharide on the muscle quality and protein in Litopenaeus vannamei during F-T cycles, the myofibrillar protein of samples during F-T cycles with different pretreatment methods (sterile distilled water, tripolyphosphate and carrageenan oligosaccharide) we
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2507 (2019)
Prediction of Tea Diseases Based on Fluorescence Transmission Spectrum and Texture of Hyperspectral Image
Bing LU, Jun SUN, Ning YANG, Xiao-hong WU, and Xin ZHOU
In order to realize accurate prediction of tea disease and avoid secondary damage in the process of disease feature extraction, the fluorescence transmission technology was used to study the spectrum characteristics of tea red leaf disease. The total of 45 samples of healthy tea leaves, 60 samples of early stage of red
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2515 (2019)
Study on the Tea Identification of Near-Infrared Hyperspectral Image Combining Spectra-Spatial Information
Qing-kong CAI, Er-jun LI, Jin-bao JIANG, Xiao-jun QIAO, Rui-bo JIANG, Hai-kuan FENG, Shao-tang LIU, and Xi-min CUI
The class-identification and grade-determination of tea have practical importance. Hyperspectral imaging possesses conspicuous advantages in data form of the combination of image and spectra, as well as in fast and undamaged checking in food safety, compared with traditional methods. In this study, hyperspectral images
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2522 (2019)
SPAD Prediction Model of Rice Leaves Considering the Characteristics of Water Spectral Absorption
Zi-yang YU, Xiang WANG, Xiang-tian MENG, Xin-le ZHANG, Dan-qian WU, Huan-jun LIU, and Zhong-chen ZHANG
Chlorophyll is an important pigment in vegetation photosynthesis, and the traditional laboratory method needs destructive sampling and complex operation. By constructing a high-precision SPAD spectral estimation model, the real-time non-destructive monitoring of chlorophyll content in rice leaves can be realized. In th
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2528 (2019)
Effects of pH Values on the Photo-Degradation of Dissolved Organic Matter (DOM) from Dianchi Lake
Li-li YU, Ye ZHONG, Fu-hong SUN, Di SHI, Guang-nan AN, Yan-qing CHEN, and De-wen LI
The effects of pH values on the characteristics of photochemical degradation of dissolved organic matter (DOM) from Dianchi Lake by using UV-Visible absorption and three-dimensional excitation-emission matrix fluorescence spectroscopy (EEMs) combined with parallel factors analysis (PARAFAC) were investigated in the pre
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2533 (2019)
Analysis of the Directional Characteristics of the Reflection Spectrum of Black Pine Canopy
Xiu-li XIA, Jie PAN, Xiao-qian GAO, and Chen-chen WU
Pine wilt disease is a devastating disease of pine tree species, thus, early diagnosis of forest pests and diseases in small forest lands even single wood level is particularly important for forest resources protection and sustainable development. This study used black pine as the research object and the multi-angle hy
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2540 (2019)
Determination of Petroleum Pollutants by Four Dimensional Fluorescence Spectra Based on Temperature Variable
Zhe YANG, Yu-tian WANG, Zhi-kun CHEN, Ting-ting LIU, Feng-kai SHANG, Shu-tao WANG, Peng-fei CHENG, Jun-zhu WANG, and Zhao PAN
Three dimensional fluorescence spectroscopy combined with multivariate calibration analysis for petroleum pollutants multicomponent determination method has problems of complex spectra aliasing, and is susceptible to blank fluorescence and interference fluorescence reducing the accuracy of result. Temperature informati
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2546 (2019)
Determination of Pefloxacin by the Fluorescence Resonance Energy Transfer Effect Between Carbon Dots-Eosin B
Jun ZHU, Ye-ping LI, Jin-shan ZOU, Fang-yuan CHEN, Fu-ming LIU, Xing-rong YAN, Yu-xin TAN, and Hao-ying ZHAI
A fluorescence resonance energy transfer (FRET) system between fluorescence carbon dots (CDs, donor) and Eosin B (EB, acceptor) was constructed, and a new method for sensitive and selective determination of pefloxacin (PEFL) was proposed. Fluorescent carbon dots (CDs) were synthesized by pyrolysis treatment using Setcr
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2554 (2019)
Rapid and Quantitative Analysis of Histamine in Fish Using Surface Enhanced Raman Spectroscopy
Xiao-ying GUO, Li QIU, Jin-jie ZHANG, Dan-ting YANG, Chun-lan TANG, Da-lun XU, Qiao-ming LOU, Wen-ge YANG, and Qi-jie HU
A rapid method for the detection of histamine in fish products was developed in this study based on Surface-enhanced Raman spectroscopy (SERS). Silver nanoparticles (Ag NPs) were used as the active substrate and sodium chloride solution as an aggregating agent to obtain histamine SERS peaks. The histamine content in fi
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2561 (2019)
Qualitative and Quantitative Detection of Glucose and Sucrose in Milk Powder Based on Terahertz Spectroscopy
Jian WU, Yan-de LIU, Bin LI, and Jun HU
Milk powder is rich in human body’s five major nutrients, and is one of the main sources of nutrition for infants and young children also. So the nutritional components in milk powder have an important impact on the growth and development of infants. However, excessive sugar content may have adverse effects on the heal
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2568 (2019)
Research on Identifying Maize Haploid Seeds Using Near Infrared Spectroscopy Based on Kernel Locality Preserving Projection
Wen-jie LIU, Wei-jun LI, Hong QIN, Hao-guang LI, and Xin NING
Haploid identification plays a key role in the field of maize-haploid breeding. To achieve mass and automated identification, Near-infrared Spectroscopy (NIRS) Analysis Technology is widely used. Its advantages include online monitoring, rapid analysis, easy operation, lossless process, cost-effectiveness, etc. At the
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2574 (2019)
Study on Non-Destructive Testing Model of Hyperspectral Imaging for Shelf Life of Crisp Pear
Xiong LI, Yan-de LIU, Ai-guo OUYANG, Xu-dong SUN, Xiao-gang JIANG, Jun HU, and Yu-ping OUYANG
Fruit freshness is an important quality index reflecting whether the fruit is fresh and full. In order to explore the prediction and discrimination methods of different shelf life of fruits, this paper takes the pear as the research object, and uses hyperspectral imaging technology combined with partial least squares d
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2578 (2019)
Nondestructive Identification of Green Tea Based on Near Infrared Spectroscopy and Chemometric Methods
Pao LI, Ru-jia SHEN, Shang-ke LI, Yang SHAN, Sheng-hua DING, Li-wen JIANG, Xia LIU, and Guo-rong DU
Green tea is the most popular type of tea in China. The differences of green tea leaves from different categories are very small, and it is hard to distinguish them for non-experts by appearances. Traditional chemical methods are complicated in operation and are destructive to samples and it is difficult to achieve fas
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2584 (2019)
Rapid Determination of Water Content in Refined Honey Used as Key Excipient to Form Pills Based on Near Infrared Spectroscopy
Sai FU, Long-fei LIN, Yu-ling LIU, Ji-zheng SONG, Jin-xin SHAO, Ming ZHONG, Tang-gui XIE, and Hui LI
Near-infrared spectroscopy(NIRS) was used to quantify moisture content about refined-honey, and the practicability to classify the samples degree through refining was investigated. Process Analysis Technology is vital to affecting the quality stability of traditional Chinese medicines, with the lagging nature of detect
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2590 (2019)
Determination of PAHs in Water by Using EEMD and SWATLD Coupled with Three-Dimensional Fluorescence Spectroscopy
Hui ZHANG, Li-juan ZHANG, Yu-tian WANG, Feng-kai SHANG, Yan ZHANG, Yang-yang SUN, Xuan-rui WANG, and Shu-tao WANG
Polycyclic aromatic hydrocarbons (PAHs) have teratogenic, carcinogenic and mutagenic properties, which seriously pollute the ecological environment and threaten the health of human beings and the growth of animals and plants. PAHs enter into the water environment through various ways, such as sewage discharge, atmosphe
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2595 (2019)
Soil Heavy Metal Qualitative Classification Model Based on Hyperspectral Measurements and Transfer Learning
Chao TAO, Wen-bo CUI, Ya-jin WANG, Bin ZOU, and Zheng-rong ZOU
The current qualitative classification models of soil heavy metal content based hyperspectral remote sensing technology mostly use indoor measured spectral data from the same area for model training and testing. However, the indoor spectrum measurement requires a complicated processing process with high cost and low ef
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2602 (2019)
Determination of Conductivity in Sweet Corn Seeds with Algorithm of GA and SPA Based on Hyperspectral Imaging Technique
Ting-ting ZHANG, Bin ZHAO, Li-ming YANG, Jian-hua WANG, and Qun SUN
The vigor of seeds plays a vital role to the agricultural development. But the low vigor and storage-tolerance seeds are common problems for sweet corn. Therefore, it has a certain practical significance to detect the sweet corn seed vigor accurately and timely. Electrical conductivity test is a traditional method of d
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2608 (2019)
Determination of Gold in Mineral Samples by Flame Atomic Absorption Spectrometry after the Separation and Preconcentration with Small Fire Assay
Nan WANG, Xu-dong SUN, and Di HUO
Study and establish a method of separation and enrichment of different from the traditional fire assay——small fire assay preconcentration of gold in ores, and the detection method for gold content Flame atomic absorption spectrometer. The optimal small fire assay conditions were determined: flux ratio, borax-soda-yello
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2614 (2019)
The Inversion of Knots in Solid Wood Plates Based on Near-Infrared Spectroscopy
Hui-ling YU, Miao ZHANG, Hong-yi HOU, and Yi-zhuo ZHANG
Knots affect the mechanical properties of solid wood plates.The accurate description of knots in wood plates and the calculation of wood board mechanical properties have been issues with great practical value. Nowadays, machine vision method is used to detect the defects on wood surface, ultrasonic testing is used to d
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2618 (2019)
Line Index of A-Type Stellar Astronomical Spectrum Predict Effective Temperature by Ridge Regression Model
Ren-zheng XUE, Shu-xin CHEN, and Hong-ben HUANG
Line index is widely used in describing the features of spectral lines for astronomical objects because it retains the main physical characteristic information of these objects. Based on line index, a multi-parameter model for regression analysis could be used to uncover co-variation relationship of data and the inhere
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2624 (2019)
Study on Blue Dopant Ratio on the Performance of TOP-Emitting White OLED Microdisplays
Liang-fei DUAN, Guang-hua WANG, Fu-li QIAN, Si-bo GAO, Yu DUAN, Hua-xia JI, and Heng FAN
White OLED microdisplays have an important application in the field of information display. In this paper, The vacuum coating system is used to sequentially deposit an Ag/ITO composite film as the anode structure and Mg: Ag composite film is co-distilled to form a translucent cathode structure. NPB is used to hole tran
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2630 (2019)
Study on High Speed Detection of Terahertz Spectrum Based on Michelson Interferometer
Can CAO, Zhao-hui ZHANG, Xiao-yan ZHAO, Han ZHANG, Tian-yao ZHANG, and Yang YU
Terahertz spectroscopy, as the main method to obtain the information of substances in terahertz frequency band, has been widely used in the determination of substance composition, and it has a broader application prospect in the imaging of composition distribution, such as the detection of effective components of table
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2634 (2019)
Realization of National Primary Standard Apparatus of Spectral Irradiance from 200 to 400 nm
Cai-hong DAI, Zhi-feng WU, Yan-fei WANG, and Ling LI
Aiming at the problem of lacking national measurement ability of short UV spectral irradiance, based on high temperature blackbody source, national primary standard apparatus of spectral irradiance in the spectral wavelength from 200 to 400 nm was developed independently at NIM in 2017. A group of stable deuterium lamp
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2640 (2019)
In-Situ Wavelength Calibration of Fast-Response Extreme Ultraviolet Spectrometers on Experimental Advanced Superconducting Tokamak and Its Application
Li-ming YAO, Ling ZHANG, Zong XU, Xiu-da YANG, Cheng-rui WU, Rui-rui ZHANG, Fei YANG, Zhen-wei WU, Jian-ming YAO, Xian-zu GONG, and Li-qun HU
In this work, the in-situ wavelength calibration method for the newly installed fast-time-response Extreme Ultraviolet (EUV) Spectrometers on EAST is introduced and the result and its application are described. Both of the spectrometers are grazing incidence flat-field spectrometers with temporal resolution of 5 ms
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2645 (2019)
Study on Spectral Data Processing Methods of New Type High-Density Grating Spectrometer Made in China
Tian-tian ZHANG, Bing LI, Gui-min CAI, Jun-hui LI, Yan-jun MA, Li MA, Long-lian ZHAO, and Shu-en WU
In this paper, we used the S450 near-infrared high-density grating spectrometer with technology of high-speed acquisition developed by Shanghai Lengguang Technology Co., Ltd. and China Agricultural University, took wheat and tobacco as the experimental object, and aimed at the high-density spectra (wavelength range is
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 2651 (2019)
[in Chinese]
[in Chinese]
Spectroscopy and Spectral Analysis
  • Publication Date: Jan. 01, 1900
  • Vol.39 Issue, 8 1 (2019)